Malicious PDF — malware analysis report

Static analysis result for SHA-256 92470ab03ce8a107…

MALICIOUS

PDF

42.1 KB Created: 2020-08-06 17:52:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a668144d064b8245bfeb214210711a1 SHA-1: 70e598755decc5d9ffe7b5af3d5f9dc7179851c4 SHA-256: 92470ab03ce8a10762ba046fd180afa69a1359f42bacbd4b326fd3bc109d2e9a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF document functions as a link farm, containing numerous embedded URLs. The primary malicious URL, 'https://ttraff.ru/pify?keyword=candidiasis+peneana+tratamiento+pdf', is identified as a redirector. The document's content, though garbled, suggests a lure related to medical treatment, likely to entice users to click the embedded links. The ML classifier strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=candidiasis+peneana+tratamiento+pdf In PDF document text
    • http://files.waubonsiedanceteam.com/uploads/1/3/0/7/130738755/5661521.pdfIn PDF document text
    • http://files.schoolslastudentsdeserve.com/uploads/1/3/1/1/131163738/598208.pdfIn PDF document text
    • http://files.burbanklimousine.com/uploads/1/3/1/0/131070597/205108.pdfIn PDF document text
    • http://files.villageofeaston.com/uploads/1/3/0/9/130969418/b8c2659cd85598.pdfIn PDF document text
    • http://files.emmaharry.com/uploads/1/3/2/7/132741334/gevobu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/mewunazokokugowurapede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2683/0744/files/ftp_for_3ds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6491/8165/files/libuzupowofaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3042/files/83770465583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xazijejizamoketabuguta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9575/2864/files/fedomutadole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6031/0695/files/esclerosis_multiple_causas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2230/2888/files/jexojiratuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1356/2787/files/wukabotuxoxigadawevasena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/wawoxeguda.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4C 5060 bytes
SHA-256: 0b61cdb2768a226f1efdffb2b9fb2e4ce08199c39888fa1e195607dddc6bdcb4
font_01_sfnt_off00007b68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B68 9452 bytes
SHA-256: 68feadfe56129e1e67a5f24c8e71455608e6ea8dfd70dbbad3a7adc5bf936d87

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